xfce4-about does show single quotes if used in os-release file
values must be enclosed in double or single quotes if they include spaces
Source:
https://www.linux.org/docs/man5/os-release.html
https://www.freedesktop.org/software/systemd/man/os-release.html
So both should be valid to be used in os-release file. (singe and double-quoates) But if using single quotes xfce4-about shows the quotes: Would be nice to be able to use single quotes too.. will need changes in this: https://gitlab.xfce.org/xfce/libxfce4ui/-/raw/master/xfce4-about/system-info.c
Greetings joekamprad (EndeavourOS)
Edited by Johannes Kamprad